______childrengetolder,Dohertysaid,theirbrainsmaydeveloptheabilitytoind

______children get older, Doherty said, their brains may develop the ability to indentify visual context.A.AsB.WhenC.While D.Since

A解析试题分析：As随着；When当……时候；While当……时候；Since既然。句意：随着年龄的增长，大脑会形成辨认视觉环境的能 力。根据句意故选A.考点：考查连词的用法。点评：本题难度适中。判断从句中用哪个连词，需用记住连词的用法，在句中的作用，连词也是高考的热点，需要考生平时多练习。需要考生会分析句子成分理解句意。即学即练：______you can't answer the question, perhaps we'd better ask someone else.A. As B. When C. While D. Since解析：D。句意：既然你无法回答这个问题，我们最好再问问别人。

哦，回答的不错